One thought that comes to mind for me is, have you thought about a "hair-line-crack" in the Maggie body? If you spray starter fluid around it you may find a crack but may not be able to "see" it. I you can not find the problem you may want to take the Maggie to a shop and have it magged for cracks, the mag process will find cracks where the eye can not! Good luck, sounds like you could use it!!!!
IF IT'S WORTH HAVING, IT'S WORTH WAITING FOR!!!! (AND IT WAS)
Livernois Motorsports 2C Cam kit
Kooks 1 7/8 LT Headers/Hi-Flo Cats/Corsa Exhaust
Roto-Fab CAI / Port Intake
Precission 2400/2800 Converter/3.73 AAM gears
Livernois Motorsports Tune
Best time: 11.97 @ 117 MPH